[INFO] cloning repository https://github.com/davidbegin/Messin-with-Closures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidbegin/Messin-with-Closures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbegin%2FMessin-with-Closures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbegin%2FMessin-with-Closures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c9b4e7ebb59a3c33ae3908f7e07dfebb30544c5
[INFO] documenting davidbegin/Messin-with-Closures against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbegin%2FMessin-with-Closures" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidbegin/Messin-with-Closures on toolchain 6ee483316d2e4581572121d60a955affb2032eb3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davidbegin/Messin-with-Closures
[INFO] finished tweaking git repo https://github.com/davidbegin/Messin-with-Closures
[INFO] tweaked toml for git repo https://github.com/davidbegin/Messin-with-Closures written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/davidbegin/Messin-with-Closures already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db74914a33339b74621b38be051c60ddcc7c915785e1ad113c58604e425a74d9
[INFO] running `Command { std: "docker" "start" "-a" "db74914a33339b74621b38be051c60ddcc7c915785e1ad113c58604e425a74d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db74914a33339b74621b38be051c60ddcc7c915785e1ad113c58604e425a74d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db74914a33339b74621b38be051c60ddcc7c915785e1ad113c58604e425a74d9", kill_on_drop: false }`
[INFO] [stdout] db74914a33339b74621b38be051c60ddcc7c915785e1ad113c58604e425a74d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] b966831dd42efd5f71ad50b8018aa61a558e1eccfd3166e656fa40c869ca0a9a
[INFO] running `Command { std: "docker" "start" "-a" "b966831dd42efd5f71ad50b8018aa61a558e1eccfd3166e656fa40c869ca0a9a", kill_on_drop: false }`
[INFO] [stderr]     Checking type_printer v0.0.1
[INFO] [stderr] warning: failed to check lib in package `type_printer` as a prerequisite for scraping examples from: lib
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/type_printer-0.0.1/Cargo.toml
[INFO] [stderr] warning: `type_printer` (lib) generated 1 warning
[INFO] [stderr]     Scraping messin_with_closures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting messin_with_closures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "b966831dd42efd5f71ad50b8018aa61a558e1eccfd3166e656fa40c869ca0a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b966831dd42efd5f71ad50b8018aa61a558e1eccfd3166e656fa40c869ca0a9a", kill_on_drop: false }`
[INFO] [stdout] b966831dd42efd5f71ad50b8018aa61a558e1eccfd3166e656fa40c869ca0a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] fd884791bee915bc502c87b8ade8740758ebffae861a3b331693c5a20fb1230e
[INFO] running `Command { std: "docker" "start" "-a" "fd884791bee915bc502c87b8ade8740758ebffae861a3b331693c5a20fb1230e", kill_on_drop: false }`
[INFO] [stderr]     Checking type_printer v0.0.1
[INFO] [stderr] warning: failed to check lib in package `type_printer` as a prerequisite for scraping examples from: lib
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/type_printer-0.0.1/Cargo.toml
[INFO] [stderr] warning: `type_printer` (lib) generated 1 warning
[INFO] [stderr]     Scraping messin_with_closures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting messin_with_closures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "fd884791bee915bc502c87b8ade8740758ebffae861a3b331693c5a20fb1230e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd884791bee915bc502c87b8ade8740758ebffae861a3b331693c5a20fb1230e", kill_on_drop: false }`
[INFO] [stdout] fd884791bee915bc502c87b8ade8740758ebffae861a3b331693c5a20fb1230e